Senior IT Specialist: Networks, Security & Automation

SA Metal; Johannesburg; Presencial; ZAR 900.000 - 1.200.000; Jornada completa

Descripción de la vacante

SA Metal is seeking a highly experienced Senior IT Professional to own complex technical challenges across network, server and end-user environments. You will resolve escalated issues through root cause analysis and work collaboratively or independently on high-impact projects.

You will deploy and maintain Windows Server environments (2016–2025), Hyper-V, Active Directory, DNS/DHCP, and firewall/networking technologies such as Fortinet and Mikrotik, while producing documentation and automation

Formación

• Minimum 12 years’ IT professional experience with escalated issue resolution.
• Minimum 8 years configuring and maintaining corporate LAN & WAN.
• Advanced proficiency with Windows 10/11 in a distributed environment.
• Advanced proficiency with Office 2016–2024 and Office 365.
• Proven Windows Server deployment/administration (2016–2025).
• Strong hardware/software configuration and lifecycle management.
• Advanced troubleshooting with root-cause analysis in complex environments.
• Experience leveraging AI tools to improve IT operations.
• Strong networking expertise including switch and router configuration.
• Willing to travel to sites and work overtime as needed.

Responsabilidades

• Training and support of userbase on IT Systems
• Maintaining mail infrastructure (Postfix, Sendmail, Exim), including Antispam/Antivirus policy, DNSBL configuration, SMTP protocol troubleshooting, and mail routing
• Configuring and administering Fortinet firewall estates (policy configuration, VPN, security profiles, high availability)
• Configuring and maintaining Mikrotik network infrastructure, including routing and inter-site connectivity and troubleshooting
• Wireless network deployment and troubleshooting
• Providing advanced technical support for critical desktop and server issues
• Actioning Service Desk ticket queues, ensuring SLA compliance and quality of escalated resolutions
• Producing technical documentation and knowledge base procedures
• Identifying opportunities for and implementing automation and scripting to reduce manual workload across the team
• Configuring IP camera/CCTV infrastructure, including network integration
• Ensuring completion of daily operational checklists and reporting status to the IT Manager
• Proactive monitoring and capacity/performance management of connected devices and inter-branch connectivity
• Performing Root Cause Analysis on recurring or high-impact incidents, implementing permanent resolutions through root cause analysis
• Undertake travel to sites to perform installations and maintenance as required
• Creating, deploying, and administering Windows Server environments (2016–2025), including DHCP, DNS, Active Directory configuration, Group Policy, and forest/domain administration
• Deploying and maintaining Hyper-V virtualization infrastructure, including host configuration, guest provisioning, and server migrations
• Administering Biometric Access Control systems, including integration and troubleshooting

Conocimientos

Root cause analysis

Advanced troubleshooting

Excellent communication

Independent work

Team collaboration

Overtime readiness

Educación

CompTIA N+

A+

MCSE/MCITP

Mikrotik MTCNA

ITIL Foundation

Herramientas

Fortinet firewall

Mikrotik RouterOS

Hyper-V virtualization

Windows Server (2016-2025)

Active Directory

DNS/DHCP

PowerShell

ManageEngine ServiceDesk Plus

SQL databases

Descripción del empleo

SA Metal is seeking a highly experienced Senior IT Professional to own complex technical challenges across network, server and end-user environments. You will resolve escalated issues through root cause analysis and work collaboratively or independently on high-impact projects.

You will deploy and maintain Windows Server environments (2016–2025), Hyper-V, Active Directory, DNS/DHCP, and firewall/networking technologies such as Fortinet and Mikrotik, while producing documentation and automation